Beyond Linux® From Scratch - Version 7.4

Chapter 9. General Libraries

libatomic_ops-7.2d

Introduction to libatomic_ops

libatomic_ops provides
implementations for atomic memory update operations on a number of
architectures. This allows direct use of these in reasonably
portable code. Unlike earlier similar packages, this one explicitly
considers memory barrier semantics, and allows the construction of
code that involves minimum overhead across a variety of
architectures.

This package is known to build and work properly using an LFS-7.4
platform.